Temasek Leads US$80 Million Series A Funding for Power Infrastructure Firm Amperesand

Oversubscribed round co-led by Temasek and Walden Catalyst Ventures to accelerate next-generation power systems for AI data centres

November 19, 2025 – Singapore

Amperesand, a next-generation power infrastructure provider for artificial intelligence (AI) data centres and other critical power applications, has raised US$80 million in an oversubscribed Series A funding round that closed on Nov 18. The round was co-led by Temasek and Walden Catalyst Ventures, drawing strong interest from global investors.

New participants included Industry Ventures, Acclimate Ventures and SG Growth Capital, while existing backers – Xora Innovation, Material Impact, TDK Ventures and Foothill Ventures – also contributed to the round.

Reinventing Power Delivery with MV SST Technology

Amperesand said its medium-voltage solid-state transformer (MV SST) platform dramatically streamlines the delivery of high-power infrastructure. The system:

• reduces installation labour requirements by 50%,

• accelerates time to power by 10×, and

• cuts the electrical footprint by more than 80%,

thanks to its ultra-compact, integrated architecture that unifies hardware, software and intelligent controls.

These advantages allow large-scale facilities—particularly hyperscale AI data centres—to expand more rapidly and flexibly amid surging global demand for power-hungry computing clusters.

Scaling Deployment and Global Operations

The new funds will support the deployment of 30 megawatts of commercial systems in 2026, with a strong focus on hyperscale AI customers. Amperesand will also expand its engineering and manufacturing footprint in the United States and Singapore to meet rising international demand for critical power solutions.

The company is set to deliver its first commercial units early next year to the Port of Singapore, enabling a mission-critical charging pilot with PSA International. Amperesand has additionally secured several commercial pilots for 2026, aimed at helping AI hyperscale operators accelerate the rollout of next-generation GPUs using its MV SST-based architecture.

Power Infrastructure as a Strategic Imperative

CEO and co-founder Brian Dow noted that as AI data centres and critical power systems become matters of national security, countries are prioritising secure, resilient and locally supported energy infrastructure.

Amperesand’s MV SST platform, he said, enables “in-country cybersecure controls and data, regionally available supply chains, and low-capex local manufacturing.”

Young Sohn, founding managing partner of Walden Catalyst Ventures, emphasised that Amperesand is tackling one of the biggest bottlenecks limiting the growth of AI computing.

“AI is redefining the limits of computing,” he said. “But without a revolution in power infrastructure, this growth simply can’t scale.”

From NTU Spin-out to Global Expansion

Amperesand was incubated by Xora Innovation and spun out from Nanyang Technological University (NTU) in 2023. Last year, it successfully completed full-power, overload and bidirectional testing of its second-generation system, laying the foundation for its commercial MV SST platform.

In 2025, the company expanded into the US, establishing engineering and advanced manufacturing hubs in San Francisco and Reno. Amperesand expects to surpass 100 employees globally by the end of the year.